/Engine/Source/Editor/WorldPartitionEditor/Public/WorldPartition/SWorldPartitionEditorGrid2D.h
Called when the mouse wheel is spun. This event is bubbled.
Returns whether the event was handled, along with other possible actions
virtual [FReply](API\Runtime\SlateCore\Input\FReply) OnMouseWheel ( const [FGeometry](API\Runtime\SlateCore\Layout\FGeometry) & MyGeometry, const [FPointerEvent](API\Runtime\SlateCore\Input\FPointerEvent) & MouseEvent )